Conduit.



No. 695,478. 4 Patented Mar. l8, I902. P. A. mazonse. I

UUNDUIT.

(Application med July 13, 1901.) (H0 HMBI.)

INVENTOR;

.Wzrzvassgs: I 2% 'rn'i NORRIS P'ETERS coy. motwfl6., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

PERCY ALLAN MOGEORGE, OF NEW YORK, N. Y.

oonouiT/ SPECIFICATION forming part of Letters Patent No. 695,478, dated March 18, 1902. g

i Application filed July 13, 1901.

To (tZZ whom it may concern:

Be it known that I, PERCY ALLAN MO- GEORGE, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Conduits and Similar Articles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to the letters of reference marked thereo'mwhich form a part of this specifica tion.

This invention relates to a new and novel conduit primarily designed for electric cables and the like,but by slight modification adapted for other uses, and has'for its primary object the construction of a conduit which may be made up of a series of sections which when properly associated will cooperate to constitute a substantially tubular water,d ust, and steam tight casing.

Novel details in the construction and arrangement of the several parts will be apparent from the detailed description hereinafter, when readin connection with the accompanying drawin gs,f0rmin g part hereof, and the appended claims.

In the drawings an embodiment of the invention is delineated for the purpose of illustration, and when referring to the same like reference characters will refer to corresponding parts in the several views, whereof- Figure 1 is an end view of a conduit construct-ed in accordance with the present-invention. Fig. 2 is a side elevation of onsetthe sections of the conduit,'and Fig. 3 is an outside elevation thereof.

Referring more specifically to the drawings, A designates the conduit,which is tubular in cross-section, although in'contour the sections may be rounded, angular, or a combination of both, as desired in particular instances. The conduit comprises a plurality of elongated sections, those shown in the drawings being designated B and 0, respectively. Although the conduit in this instance has been shown as composed of but two longitudinally-arranged sections,it will be apparent that the same may be formed of any num- Serial No. 68,184. (No model.)

together in such amanner as to form a practically water, dust, and steam tight joint. Although series of these cooperating grooves and .ribs are shown, it is to be understood that for some purposes one only of each'will suffice. V v 7 i To secure the ends of the sections of the conduit together, they are provided with a projecting reduced portion D, which is provided with exterior tapering threads adapted to engage a correspondingly interiorly screwthreaded portion at the opposite end of the adjoining section. (Not shown.) The threads dot the extensions D may be of any desired type and graduallyincrease in width and height from beginning to end, as best seen in Fig. 3. The interior threads at the opposite ends of the sections (not shown) are correspondingly formed, so that as the two sections are secured together the gradually-increasing size of the threaded stem will be be brought into cooperation with the gradually-decreasing sized interior threads, so that a wedge connection will be created between the two, and a water, dns t,-a'nd steam tight couplingefifected.

It will be apparent that numerous changes 7 in the details and construction of the several parts may be made without in the least departing from the nature and spirit of the invention and that the insertion is equally applicable to all styles of pipes, tubes, steamchests, &c, as well as to conduits, in connection with which latter the same has been particularly described.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. A hollow article of the character de scribed, coinprisin g a series of sections united together bya wedge connection, substantially as described.

2. A hollow article of the character described, comprising a series of longitudinally arranged sections, a rib 011 one of the sections tapered throughout a portion of its length, and a correspondingly-shaped groove in the opposite section, the projection and groove being adapted to cooperate in forming a Wedge-joint between the sections, substantially as described.

3. A hollow article of the character described, comprising a series of longitudinallyarranged sections having at their adjacent edges a series of dovetailed ribs and grooves PERCY ALLAN MCGEORGE.

\Vitnesses:

BENJAMIN G. REYNOLDS, HARRY E. CONWAY. 

